EP0963699A1 - Arrangement for applying a sealing clip to packaging envelops - Google Patents

Abstract

Sausage skin is waisted at regular intervals by the application of levers. The constricted zone is held closed by a clip with a loop (16). Each sausage is fitted with a suspension loop (16) which is presented at the waisted zone by a flexible carrier band (15) bearing a continual supply of suspension loops (16). The carrier band (15) approaches the constriction zone at an acute angle relative to the sausage feed, where it sharply changes direction, causing the loop (16) leading edge (18) to detach from the carrier band (15) and releasing the loop (16) into the waisted zone.

Description

The invention relates to an arrangement for attaching a Closure clip on a packaging sleeve, with a for Locking point leading guideway for locking clips, and with a device for inserting a hanging loop into the guideway using a flexible Loop carrier tape on which a plurality of hanging loops are lined up.

It is known to have a hanging loop at one end of sausages to be provided on which the sausage can be hung. When closing the sausage end with a closing clip (a bending clip or a so-called clip) is the Hanging loop attached to the sausage end using this clip.

The feeding of the magazines on the carrier tape is problematic Hanging loops in a position in which they are from the locking clip is detected and integrated in the closing process can be. In various known arrangements the loops are removed from the guideway or locking point removed from the carrier tape and by means of a separate Organs led to the place where it from the locking clip can be detected (DE-C-33 22 759, DE-A-29 50 603). This is disadvantageous because of the additional funding body is structurally complex for the loops.

The loop carrier band has already been proposed to directly in the area of the guideway of the locking clip to guide and to provide a redirection there, so that a loop detaches from the carrier tape and its leading End slides into the guideway (DE-C-34 41 303). In this prior art, the direction of insertion corresponds the suspension loop in the guideway of the Sealing clip of the conveying direction of the loop carrier belt immediately before the redirection. The loop must be from the side brought here into the guideway so that the feed the loop carrier tape from a direction perpendicular to Guideway takes place. This is disadvantageous as such Lateral loop feed often fails due to space problems. Another disadvantage of this prior art is that the Hanging loop by a relatively small side Opening (e.g. a slot) threaded into the guideway must become. Pushes the loop against the edge when threading of the slot, this leads to malfunctions.

The invention has for its object an arrangement of to create a simple, safe and space-saving loop feed to the guideway for the purpose Carrying the loop through a locking clip to the locking point enables.

The invention solves this problem in that the supply of Loop carrier tape to the guideway at an acute angle relative to the direction of this guideway and that a deflection of the loop carrier band in the area of the guideway is provided such that the deflection the leading end of a loop detached from the carrier tape and swung into the guideway.

First of all, let us consider some of the terms used in the context of the invention explained.

The guideway for locking clips is used to guide closure clips taken from a magazine to the closure point by means of a stamp. As an abutment is in A matrix is provided in the area of the closure point. The guideway usually has two opposing, parallel grooves on which the legs of the usually about Pick up and guide the U-shaped locking clip. The guideway can be used as an elongated opening in a lock plate be formed, the opposite sides of the breakthrough have the mentioned guide grooves.

The arrangement according to the invention is for use with a flexible loop strap is provided on the hanging loops are lined up. It is used for magazine storage Loops. The flexible band usually consists of one Plastic. The cord loops are usually on the ribbon glued. The cord loops are preferably made of formed a cord end, the ends of which are knotted together are so that the loop has an elongated shape.

According to the invention, the loop carrier tape is fed to the guideway at an acute angle relative to the direction this guideway. The acute-angled feed allows that Feed the carrier tape from a direction that is not through the cross section of the filled packaging envelope (Sausage cross section) or other machine parts are "occupied".

Another important feature of the invention is a redirection the loop carrier band directly in the area of Guideway in such a way that by this deflection leading end of a loop detached from the carrier tape and the guideway is swung in. The term "Swinging in" means in the context of the invention that the leading End of the loop to be detached not only in the feed direction of the loop carrier tape immediately before the redirection continues, but that it during the redirection process undergoes a change of direction through which this end from the originally acute-angled feed direction into one Direction preferably approximately transverse to the direction of the guideway is pivoted, comes to lie in this guideway and when moving the clip onto the die using the stamp can be taken away and integrated by it. The The carrier tape is preferably not deflected on one sharp edge, but on a rounded surface to the pivoting movement of the leading loop band during to support the detachment process from the carrier tape.

The core of the invention is thus the combination of a space-saving acute-angled feeding of the loop carrier tape with a deflection in the area of the guideway such that one loop each with its leading end in the guideway pivoted in and not, as in the prior art provided according to DE-C-34 41 303, perpendicular from the side in The direction of feed of the tape is threaded into the guideway becomes. Swiveling in avoids the problems caused by threading a loop through a narrow slit can. Because the loop end during the pivoting process a movement component in the longitudinal direction of the closure chamber guideway experienced, the loop can be targeted at one desired position of the guideway can be placed by for example against a part holding the locking clip is placed as a stop (in the axial direction of the guideway).

As a rule, the width of a loop is larger than that clear width of the clamp guideway (the space between the two guide grooves). It is therefore preferred in the range of Locking point is a movable section of the guideway limiting guide means provided by be brought into an open position in a closed position can. The lock plate can, for example, be a pivotable arm have, in which a guide groove is arranged. Opens if you swivel this boom, you create enough Space for swiveling a loop into the guideway. The boom is then in its closed position brought in its guide groove parallel to the second, fixed guide groove on the lock plate runs.

Alternatively, the lowest part of the guideway can be connected to the The die is arranged on a lever which can be pivoted downwards be. The matrix is used to insert or gather the packaging envelope moved down, after swiveling one Loop in the guideway it can be from below in your Be brought into the closed position in which they are the abutment for the clip fed by the stamp.

The loop carrier tape is preferably fed in an angle of 10 ° to 80 °, more preferably 20 ° to 70 °, particularly preferably 30 ° to 60 ° relative to the direction of the Guideway for locking clips. Is particularly preferred it when the supply of the tape from above initially parallel to the Actuator for the clip stamp (usually one pneumatic cylinder) and the belt below this Cylinder at an angle of 30 ° to 60 ° relative to the Direction of the guideway of the deflecting edge is fed detaching the loops from the carrier tape and swiveling them in serves in the guideway.

After removing the loops, the empty carrier tape must be removed from the Closure area are led away. In principle, this can Exiting behind the redirection upwards, i.e. about against the feed direction.

However, it is particularly preferred that in the conveying direction of the Loop carrier tape behind the deflection for peeling off the Loops a second deflection of the empty carrier tape in this way takes place that it is led away from the side of the guideway becomes. The transverse discharge is particularly preferred (perpendicular) to the guideway. This second redirection can a deflection edge inclined relative to the guideway. The empty band is preferably behind the first deflection first a short distance up (against the direction of actuation of the clip stamp) until it reaches the area has left by due to the cross section of the packaging envelope and any machine parts a side discharge of the empty belt is not possible or disabled. On The second deflection then takes place at a suitable point an oblique shape shoulder so that the tape is approximately vertical can be pulled away from the guideway.

• Einlegen des zu verschließenden Abschnitts der Verpackungshülle in die Verschlußstelle der Anordnung,
• Einlegen einer Verschlußklammer in die Führungsbahn,
• Einschwenken einer Aufhängeschlaufe in die Führungsbahn der Verschlußklammern durch Transportieren des Schlaufenträgerbandes in Förderrichtung,
• Setzen der Klammer auf die Verpackungshülle unter Mitnahme der in die Klammerführungsbahn eingeschwenkten Aufhängeschlaufe,
• Entnahme der verschlossenen Verpackungshülle.

The invention further relates to a method for attaching a closure clip and a hanging loop to a packaging sleeve using the arrangement according to the invention. It has the following steps:

• Inserting the section of the packaging envelope to be closed into the closure point of the arrangement,
• Inserting a locking clip into the guideway,
• Swiveling a suspension loop into the guideway of the locking clips by transporting the loop carrier tape in the conveying direction,
• Placing the clip on the packaging sleeve taking the suspension loop swung into the clip guide track,
• Removing the sealed packaging envelope.

The method according to the invention is preferably carried out using a loop carrier tape on which the individual loops are arranged lengthways. This means that the greatest extension of each loop in the longitudinal direction of the Band points. The loops on the Carrier tape arranged to overlap one another. In the state of the Technology will be those with overlapping loops Bands (scaled bands) are usually used in such a way that Direction of conveyance of the belt the trailing end of a loop to lie under the leading end of the next loop is coming. The leading end of the next loop is said to still be on the loop in the detachment process exert a certain holding effect and premature detachment prevent. Within the scope of the method according to the invention but particularly preferably uses a tape in which the trailing end of a front loop above and not below to the leading end of the next loop comes to lie. The invention has recognized that for the invention Procedure a "holding effect" of the leading End of the next following loop is not necessary is. On the contrary, operational disruptions are avoided because the trailing end of the loop to be removed in each case only under the leading end of the following loop must be pulled out, but immediately overall from the carrier tape comes free.

Fig. 1:

eine Draufsicht auf eine erfindungsgemäße Anordnung von der Seite und senkrecht auf die Ebene der Schloßplatte,

Fig. 2:

eine weitere Draufsicht von der Seite parallel zur Schloßplatte.

An embodiment of the invention is described below with reference to the drawing. In it show:

Fig. 1:

a plan view of an arrangement according to the invention from the side and perpendicular to the plane of the lock plate,

Fig. 2:

another plan view from the side parallel to the lock plate.

The drawing shows a manually operated automatic clip machine Attaching closing clips to sausages or the like. On a base plate 1 and a frame 2 is a lock plate 3 arranged, the one pivotable about an axis 4 Boom part 5, which in Fig. 1 in its open position is shown. The lock plate has guide grooves 6.7 on each other in the closed state of the boom part 5 opposite and together a guideway for locking clips form.

A pneumatic cylinder 8 actuates one indicated at 9 Stamp, the locking clips down against the die 10 presses. The locking clips are made from a magazine 11 fed, they are at 12 from the side in the Slid the guideway, then gripped by the stamp 9 and driven onto the die. The boom part 5 of the lock plate 3 can be actuated by means of a handle 13. A cutting edge 14 is used to separate those closed by the locking clip Sausage.

So far, this arrangement corresponds to that State of the art and the structure and function of the expert common.

According to the invention, a loop carrier band is now provided 15 with scaled hanging loops 16 initially from above approximately parallel to the pneumatic cylinder 8 feed and below this cylinder by means of a the drawing roller, not shown, then obliquely in an angle of approximately 50 ° relative to the direction of the staple track lead to this guideway.

In the area of the guideway there is a rounded baffle 17 arranged around which the carrier tape 15 is deflected. Due to the deflection, a leading end 18 becomes one Loop 16 peeled off and into the limited by the groove 6 Guideway swung in. In the position shown in Fig. 2 this leading end 18 has a pivoting movement completed, it is approximately perpendicular to the plane of the lock plate 3rd lets stand. The leading end 18 is due to the pivoting movement upwards against those not shown in the drawing Holding elements (e.g. a holding block or the like) for the locking clip in the guideway beaten. This swiveling into the guideway ensures that the appropriate loop is attached is taken from the locking clip.

The desired pivoting can be supported by a arranged behind the deflection 17 in the conveying direction of the belt Sheet 18. The empty carrier tape indicated at 19 becomes first pulled obliquely upward behind the deflection 17, it passes through a slot between the deflection 17th and the plate 18, which in turn is the pivoting of the leading End 18 of the loop supports in the guideway.

The empty carrier tape 19 is on an inclined shoulder 20th redirected a second time and then perpendicular to Direction of the clamp guideway and parallel to the lock plate 3 dissipated, as indicated at 21.

The operation of the arrangement according to the invention is like follows:

After sealing a sausage, the handle 13 the foldable part 5 of the lock plate 3 opened and the closed sausage removed. The locked section can be separated by means of the cutting edge 14. After opening becomes by means of not shown and more familiar to the expert Devices a locking clip from the magazine 11th led at 12 into the guideway, held there, and stands ready for another closing operation. The loop carrier band 15 is transported so far that a new one Loop 16 by deflection at the edge 17 from the belt 15 detaching and shown obliquely from below approximately in FIG. 2 Position is pivoted. To make it easier to peel off is the foremost part of the leading end 18 preferably not glued to the carrier tape 15, such bonds are preferably in the front third of each loop and in rear third or in the end of each loop. The leading loop end 18 is swung in in the open position of the foldable part 5, so that as can be seen in particular in FIG. 1, sufficient space is available for this pivoting process.

The arrangement is now for another closing operation ready. For this purpose, the operator places the one to be fired Section of a packaging envelope so that it comes to lie on the die 10. Then using the lever 13 of the foldable part 5 in its closed position brought in which its guide groove 7 together with the groove 6 forms the guideway for the locking clip. By the Closing part 5, the pneumatic actuation of the Cylinder 8 and the stamp 9 triggered. The one fed at 12 Locking clip moves downwards, takes that existing end 18 of the loop and tears this loop from the carrier tape 15. The locking clip will work together of stamp 9 and die 10 around the packaging envelope stapled around and the loop 16 included. The foldable part 5 is opened and the next one The closing process can begin.

Claims (10)

Arrangement for attaching a closure clip to a Packaging envelope, with a leading to the closure point Guideway for locking clips, and with a device for inserting a hanging loop (16) into the Guideway using a flexible loop carrier tape (15) on which a plurality of hanging loops (16) are lined up, characterized in that that the supply of the loop carrier tape (15) to the guideway at an acute angle relative to the direction this guideway takes place and that in the area of the guideway a deflection (17) of the loop carrier tape (15) is provided such that the deflection the leading end (18) of a loop (16) from Carrier tape (15) detached and pivoted into the guideway becomes. Arrangement according to claim 1, characterized in that in Area of the closure point a movable section (5) the guiding devices that delimit the guideway (5,6,7) from a closed position to an open position is feasible. Arrangement according to claim 2, characterized in that the movable section (5) from the closed position to the Open position is pivotable. Arrangement according to one of claims 1 to 3, characterized in that that the supply of the loop carrier tape (15) at an angle of 10 ° to 80 °, preferably 20 ° to 70 °, more preferably 30 ° to 60 ° relative to the direction the guideway for locking clips. Arrangement according to one of claims 1 to 4, characterized in that that in the conveying direction of the loop carrier belt (15) behind the deflection (17) a second deflection (20) of the empty carrier tape (19) takes place in such a way that the empty carrier tape (19, 21) laterally from the guideway is dissipated away. Arrangement according to claim 5, characterized in that the empty carrier tape (19, 21) behind the second deflection (20) is discharged across the guideway. Arrangement according to claim 5 or 6, characterized in that the second deflection on one relative to the guideway inclined deflection edge (20). A method of attaching a fastening clip and a hanging loop to a packaging wrapper using an arrangement according to one of claims 1 to 7, comprising the steps: Inserting the section of the packaging envelope to be closed into the closure point of the arrangement, Inserting a locking clip into the guideway, Swiveling a suspension loop (16) into the guideway of the locking clips by transporting the loop carrier tape (15) in the conveying direction, Placing the clip on the packaging sleeve, taking the suspension loop (16) pivoted into the clip guide track, Removing the sealed packaging envelope. A method according to claim 8, characterized in that the Loops (16) on the loop carrier tape (15) each other are arranged overlapping and that each in the conveying direction of the tape leading loop over the associated trailing loop lies. A method according to claim 8 or 9, characterized in that the loops (16) with their greatest extent in Arranged in the longitudinal direction on the loop carrier band (15) are.

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